b.s., Beyond subiculum (the axon projects to cortex beyond the subiculum); n.t., not tested (the reaction was either not performed, or the reaction did not lead to conclusion); mGluR7a, mGluR8a input, these presynaptic receptors are present at high level in the boutons innervating the cell; +, positive; −, not detectable.

↵aThe axon was running through the subiculum, but no boutons were found.

↵bD150 was intracellularly recorded with a sharp electrode; the other cells were extracellularly recorded and juxtacellularly labeled.

↵cMain axon branches were heading towards the septum and subiculum but were lost before their termination could be reached.

↵dT85a has been reported as a trilaminar cell in a previous study (Ferraguti et al., 2005) and included here for comparison.